Ventilator



Patented Aug.26,.1930 r A 1,774 122 SEVEW m a. eeee....

i r 'vENTrLA'roR Appl cation filed. January 24, 19 2?. Serial No. 163,146.

My present invention relates to a ventilator cap 17 and the cover plate 20 rests on the intended for general use, but especially upper end of said leg bars and is rigidly adapted for use in connection with cupolas, secured thereto. Said leg bars 18, interchimneys, vent pipes and the like. I mediate of their ends, are bent laterally out- Generally stated, the invention consists of ward to form oblique shoulders 21 on which'ee the novel devices and combinations of devices the cap 17 rests and is rigidly secured. I hereinafter described and defined in the Mounted ontop of the cover plate 20 is a claims. I Ina-st 22 in the form of a tripod, the legs of In the accompanying drawings, which which are detachably bolted to said plate. A

illustrate the invention, like characters indiconically formed cap member 23 is telescoped 60 cate like parts throughout the several views. onto the upper end portion of the mast 22 and Referring to the drawings 1 i rigidly secured thereto. Extending axially Fig. 1 is a View, principally in side eleva- I through the top of the cap member 23 is a rod tion, of the invention embodied in a novel 24,-the lower end of which is anchored to one cupola on the roof of a barn; of the legs of the mast 22. A hearing spool 5 Fig. 2 is a fragmentary view'with some is rotatably mounted on the rod 24 and parts sectioned on the line 22 of Fig. 1 on supported on the cap member 23. Applied an enlarged scale; and i v to the rod 24 above the spool bearing 25 is a' Fig. 3 is a detail view in section taken on nut-like stop member 26 for said spool. A

20 the line 33 of Fig. 1. g weather vane 27 in the form of an arrow is Referring first to the invention illustrate rotatably mounted'on the spool bearing 25. in Figs. 1, 2, and 3: The space between the pipe section 15 and The numeral 6 indicates the roof of a barn the cover plate 20 is closed by a tapered screen to which is applied a cupola 7 that is square 28. The lower end of the screen 28 extends in crosssection and made up of four dupliinto the top of the pipe section 15 and closely cate metallic sections. Each section of the engages the same, and its upper end closely cupola 7 is provided at one end with an upengages the under side of thecover plate 20.

right right angle flange 8 that overlaps the Said screen 28 is held in place by wires 29 adjacent cupola section and is detachably but 7 inserted through certain of the meshes in said 30 rigidly secured thereto by a bolt 9. The screen and around the leg bars 18. The wide sections of the cupola 7 are also provided cover plate 20 will prevent rain from enterwith inturned right angle top flanges 10 in ing the cap 17 and the width of said cap is endless arrangement. I such as to prevent rain from entering the pipe Mounted on the cupola 7 is an inverted section 15.

35 box-like base 11 having an outstanding end- The terms cupola and chimney are herein 185 less flange 12 which rests on the top flanges used in a broad sense to cover any kind of a q 10 and is detachably but rigidly secured stack. thereto by bolts 13. Said base 11 is also pro- What I claim is: vided with a central upstanding sleeve-like 1. A ventilator comprising a pipe section,

40 flange 14. Telescoped onto the flange 14 is an open top cap secured to and spaced above a pipe section 15 detachably secured "thereto the pipe section, a cover plate secured to said by bolts 16. This pipe section 15 is provided, cap and spaced above the open top thereof, with a truncated cap 17 which is secured a' cylindrical screen extending through the thereto and held'spaced thereabove by three open top of the cap with'its lower end extend- 45 upright leg bars 18, and it is further rigidly ing into the pipe section and closely engaging held by oblique brace bars 19. Overlying the the same and with its upper end closely entop opening in the cap 17 and spaced theregaging the cover plate. above is a flat cover plate 20 of a diameter 2. A ventilator comprising a pipe section, materially larger than said opening. The a plurality of upright leg bars having inter- 50 leg bars 18 extend through the open top of the mediate of their ends outwardly ofl'set shoulders, a truncated cap supported at its top on said shoulders, the u per end portions of said leg bars being exten ed through the open top 9 of the cap, a cover plate mounted on the upper ends of the leg bars and held thereby spaced above to the open top of said cap, and

of the cap is supported, said legs and brace bars being rigidly, connected at their lower 1 ends and secured to the pipe section.

In testimony whereof I aflix my signature.

JOHN SEV'ERIN ANDERSON.

oblique brace bars on Which the base'portion 

